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Small-Angle Scattering Study of Colloidal Particles in Heavy Crude Oils Full article

Journal Petroleum Chemistry
ISSN: 0965-5441 , E-ISSN: 1531-8532
Output data Year: 2011, Volume: 51, Number: 4, Pages: 281-285 Pages count : 5 DOI: 10.1134/S0965544111040104
Tags Petroleum Chemistry; Asphaltene Molecule; Electron Density Inhomogeneity; Asphalt Enes; Total Particle Size
Authors Tuzikov F.V. 1,2 , Larichev Y.V. 1,2 , Borisova L.S. 2,3 , Kozhevnikov I.V. 1,2 , Martyanov O.N. 1,2
Affiliations
1 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2 Novosibirsk State University, Novosibirsk, Russia
3 Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

Funding (1)

1 Siberian Branch of the Russian Academy of Sciences 118

Abstract: The structural and dispersion characteristics of samples of heavy crude oils and fractions isolated from them have been studied. A method of in situ analysis of the aggregation of asphaltenes directly in crude oils on the basis of small-angle X-ray scattering is proposed. It has been shown that the maximum size of scattering particles in all crude oil samples is limited to the value on the order of 8.0 nm; the average diameter is ∼2.0 nm. It has been found that the fraction with sizes of 0.8–2.5 nm is mostly composed of resins. Asphaltenes in crude oils form larger aggregated particles with a size up to 8 nm. A comparative study of model dilute solutions of asphaltenes in toluene (0.23 wt %) has shown that the major part of asphaltenes in the liquid (∼94%) is in the form of individual molecules with a size of 0.4–1.2 nm, and only an insignificant remaining part (∼6%) occurs in the form of large aggregates.
Cite: Tuzikov F.V. , Larichev Y.V. , Borisova L.S. , Kozhevnikov I.V. , Martyanov O.N.
Small-Angle Scattering Study of Colloidal Particles in Heavy Crude Oils
Petroleum Chemistry. 2011. V.51. N4. P.281-285. DOI: 10.1134/S0965544111040104 WOS Scopus РИНЦ ANCAN OpenAlex
Original: Тузиков Ф.В. , Ларичев Ю.В. , Борисова Л.С. , Кожевников И.В. , Мартьянов О.Н.
Дисперсный состав коллоидных частиц в образцах тяжелых нефтей по данным малоугловой рентгеновской дифрактометрии
Нефтехимия. 2011. Т.51. №4. С.291-295. РИНЦ
Dates:
Submitted: May 26, 2010
Published print: Jul 1, 2011
Published online: Jul 27, 2011
Identifiers:
Web of science: WOS:000293190500007
Scopus: 2-s2.0-80052673120
Elibrary: 18004906
Chemical Abstracts: 2011:934030
Chemical Abstracts (print): 156:340153
OpenAlex: W1970357827
Citing:
DB Citing
Web of science 14
Scopus 13
Elibrary 15
OpenAlex 13
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